New Invaders in Idaho: Japanese Beetle, Brown Marmorated Stink Bug, Elm Seed Bug and Spotted Wing Drosophila
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1 New Invaders in Idaho: Japanese Beetle, Brown Marmorated Stink Bug, Elm Seed Bug and Spotted Wing Drosophila Jodie Ellis, Program Manager, Idaho State Department of Agriculture
2 Japanese Beetle
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4 Japanese Beetle (Popillia japonica) Scarab beetle native to Japan; found in NJ nursery in Polyphagous; feeds voraciously as both larva and adult. JB grubs feed on organic matter in the soil and on the roots of grasses, including turf grass. JB adults attack both foliage and fruit of more than 300 host plants. Adults skeletonize the foliage. Adults typically aggregate on preferred host plants.
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7 JB adults About 0.6 in long and 0.4 in wide Iridescent copper-colored elytra Green thoraxes and heads.
8 Adults emerge from late June throughout the summer. They feed on foliage and mate during the day. In spring, grubs By early summer, migrate upward and the grub pupates in resume feeding on an earthen cell in plant roots. the ground. Females excavate soil cavities several inches into the soil and lay egg masses. Mature grubs overwinter in soil beneath frost line Life cycle is generally one year (can be 2 years in northern areas).
9 Preferred hosts for Japanese Beetle Plant Common name Family Juglans nigra Black walnut tree Juglandaceae Abutilon hybridum Chinese lantern or parlour maple Malvaceae Acer palmatum Japanese maple Aceraceae Acer platanoides Norway maple tree Aceraceae Alcea rosa Hollyhock Malvaceae Arbutus unedo Strawberry Tree, Apple of Cain, or Cane Apple Ericaceae Bauhinia variegata Orchid tree Fabaceae Castanea dentata American chestnut tree Fagaceae Larix occidentalis Western larch Pinaceae Malus domestica Apple tree Rosaceae Podocarpus macrophyllus Japanese yew, yew pine, southern yew Podocarpaceae Populus nigra Black poplar tree Salicaceae Parthenocissus quinquefolia Virginia creeper, five-leaved ivy, or fivefinger Vitaceae
10 Prunus domestica Plum tree Rosaceae Quercus palustris Pin oak tree Fagaceae Rosa Wild rose Rosaceae Rubus Raspberries, blackberries, dewberries Rosaceae Sorbus americana Mountain ash tree Rosaceae Tilia Linden, basswood trees Malvaceae (formerly Tiliaceae) Ulmus americana American elm tree Ulmaceae Vitis spp. Grapevine Vitaceae Zea mays Corn Gramineae Zinnia elegans Zinnia Asteraceae
11 JB is est ablished t hroughout t he eastern U.S. and part s of Canada. Intermittent populations occur in the western U.S.
12 Regulated Eastern states Western states protected by the JB Quarantine To protect uninfested areas, cooperative Federal/ State regulatory programs have been operat ing for many years to prevent art ificial spread by aircraft.
13 History of JB in Idaho ISDA began trapping in Routinely deploy traps/ year. Traps are concentrated at nurseries and other high risk areas. Although traps are set at ID airports, all UPS/ Fedex/ USPS flights from regulated states go through other states first.
14 Single specimens of JB were found in or near Idaho nurseries in: Ada County in 1992 Gooding County in 1997 Twin Falls County in
15 2012 July 30, 2012 Two detections in Boise from routine traps: One adult male at city park (rose garden) near downtown area. One adult male at retail nursery on west side of city. Finds were ~ 5.5 miles apart. Rose garden in Julia Davis Park, Bosie
16 Delimiting Summer 2012 Started the first week of August. Three delimit blocks were set up in the Boise area. In each, 49 traps were set per square mile block. Ten additional traps were placed around the affected nursery in Kootenai County.
17 2012 Finds of Japanese beetle in Idaho in 2012 by county. Kootenai County Four specimens total at single nursery August 9, 14, and 17 Ada County 50 specimens total 29 in residential neighborhoods 15 in city parks 6 at single nursery August 11 September 12 Bannock County One specimen total at single nursery August 24
18 Treatment Julia Davis Park- Rose Garden and Pioneer Cemetery Ground application of imidacloprid on August 10 Follow-up application on August 14 Foliar application of B-cyfluthrin (Tempo) on all roses/ host material on August 13. Follow-up applications done every 2 weeks through September 24 Julia Davis Park- Paddle Boat area Ground application of imidicloprid on August 30 for (Based on new find of female JB on 8/ 15) A s of 9/ 6/ 12, Boise city foresters were considering treating other areas near positive finds.
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20 Brown Marmorated Stink Bug
21 Brown Marmorated Stink Bug (Halyomorpha halys)
22 Brown Marmorated Stink Bug (Halyomorpha halys) Accidentally introduced into eastern PA from A sia; first found in 1998 in A llentown (probably arrived several years earlier). In 2010, caused apple growers in the mid-atlantic region to lose 18% of their crops. The fresh apple industry has reported $37 million in damage in MD, PA, VA and WV.
23 BMSB serves two roles : 1.Major nuisance pest
24 2. Major agricultural pest
25 BM SB is polyphagous, wit h a long list of host plant s including many fruit and shade t rees and ot her woody ornament als as well as legumes and various veget ables. Some ex amples: Fruit trees (apple, cherry, peach, apricot, pear, Asian pear, mulberry, citrus fruits) Grapes Raspberries, blackberries, blueberries, caneberries, etc. Melons Soybeans Beans Corn Tomatoes Green peppers Catalpa Norway maple Many ornamental plants BMSB MAY ALSO ACT AS A VECTOR FOR DISEASES SUCH AS WITCHES BROOM (AN MLO* ) * Mycoplasma-like organism
26 One generation per year. Feeding by adults concentrated in late Mayearly June and in August-September. Highly mobile adults. Very difficult to control: limited methods available.
27 Adults They Unique legs stink are are markings are various glands approximately brown shades are include with located of faint 1.7 alternating brown on white cm the ( on 0.67 underside mottling light both in) bands the long or of top banding. on the the thorax, about antennae as undersides, and between wide, alternating forming the with first dark gray, the and bands " second off-white, shield" on pair shape the black, of thin characteristic legs, copper, outer and edge on and the of of blue-ish other dorsal abdomen. surface stink markings. of the bugs. abdomen.
28 Life Cycle of BMSB
29 Eggs Aggregat ion on crab apple leaf. 1 st inst ar nymphs 4 th inst ar nymph
30 Development
31 Aggregation When a BMSB finds a suitable site for overwintering, it releases an aggregation pheromone. (The aggregation pheromone is not the same chemical that causes them to stink.)
32 Insecticidal control Pyrethroids and neonicotinoids. Problem: disruptive to natural enemies, undermine IPM programs. Very hazardous to bees. Biological control Parasitic wasps, 3 species from A sia (Trissolcus spp.) (Impact on native pentatomids?) Cultural control Diversionary or trap crop with highly preferred host plants. Design a system minimal impact on pollinators Kim A. Hoelmer, USDA, Newark
33 BMSB N ative stink bugs are generally similar to the BM SB but have more pointed shoulders and lack the antennal stripes.
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35 BMSB in Idaho In February 2012, family from Maryland moved to Nampa, ID. On May 20, they contacted ISDA and reported finding several dozen live BMSB in yard furniture and several inside the house. Found more in early summer. Found more in October.
36 Plans Public campaign for specimens. Industries alerted through PNW Pest Alert system. Surveys next year. Black light survey around Nampa site.
37 Elm Seed Bug
38 Elm Seed Bug (Arocatus melanocephalus) In the same group as boxelder bugs, lygus seed bugs, stink bugs, bed bugs (true bugs). Originally from southern Europe. Idaho find was first in U.S. Feed on cells of elm trees (Ulmus spp.); occasionally on seeds of oak and linden trees. NOT REGULATED BY STATE OR FEDS.
39 Identification Wings are flat over back; piercing sucking mouthparts under the head that point back. A bout 1/ 3 inch long. Dark chocolate color with rusty/ red markings. Distinctive feature: scutellum is surrounded by rusty red color. Scutellum
40 HUGE nuisance pest in July/ August when congregate on and in homes and buildings. Although harmless, they emit odor when disturbed.
41 Spotted Wing Drosophila (Drosophila suzukii)
42 Spotted Wing Drosophila (Drosophila suzukii) Native to SE Asia. Attacks multiple fresh fruits with thin skins (cherries, peaches, plums, blackberries, raspberries, blueberries, grapes, strawberries, etc.). Fast becoming a problem in the Pacific Northwest. Prefer overripe, fallen and decaying fruit but will attack sound fruit. Found on bing cherry tree near Moscow, ID in August 2012; later in Nez Pierce and Canyon counties.
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44 Male Female Identification: Adults: 1/ 8 inch long. Red eyes; clear wings. Males: spots on end of each wing. Females : Saw like ovipositors.
45 Jodie Ellis Division of Plant Industries Idaho State Department of Agriculture 2270 Old Penitentiary Road Boise, ID Phone:
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